Biogas is a methane rich fuel gas produced by anaerobic breakdown of biomass with the help of methanogenic bacteria. It is composed of methane (50-70%), CO2 (30-40%) and traces of H2, N2 and H2 S.
NEET UG 2012 — Zoology Microbes in Human Welfare
In gobar gas, the maximum amount is that of
Held on 30 Apr 2012 · Verified 9 Jul 2026.
butane
methane
propane
carbon dioxide
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Which of following organisms cannot fix nitrogen? A. Azotobacter B. Oscillatoria C. Anabaena D. Volvox E. Nostoc Choose the correct answer from the options given below:
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